Danfoss Modbus RTU - Page 31

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Table of Contents3
Introduction4
About this Manual4
Assumptions4
What You Should Already Know4
Modbus Overview5
Modbus RTU Option Card Baud Rate and Parity Settings7
Modbus RTU Option Card Address Settings8
VLT Parameter Settings8
Modbus RTU Option Card Environmental Requirements9
Installation9
Status Leds13
Option Card Operability Loop Back Test13
Remote Terminal Unit14
Modbus Message Structure14
Translation from Modbus RTU Protocol to FC Protocol16
Memory Mapping17
Message Translation Examples20
Exception Codes24
Exception Code Tables24
Appendix A25
Supported Modbus Function Codes25

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Danfoss Modbus RTU - Page 31

Table of Contents